Machine for forming and attaching wire coils k



W. KIWI MACHINE FOR FORIIING AND .ATTACHING WIRE COILS Re' July 22, 1 930.

`4 sheets-sheet l Original Filed Aug. 24, 1926 l! -Vp ...JFT hw MMMU www rllmmknmv Y w. Kiwi MACHINE Fon FORMING AND ATTACHING WIRE coILs Re. 17,744

July 22, 1930.

4 sheets-sheet 5 W. KIWI MACHINE FOR FORMING AND ATTACHING WIRE OILS Filed Aug. 24, 1925 Original Filed Aug. 24, 1926 4 SheetSfSheet 4 July 22, 1930.

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Reissuecl July 22, 1930 UNITED STATES PATENT WALTER KIWI, F PHILADELPHIA, PENNSYLVANIA, AssIerNoR,f ErhiiIEsNE4 ASSIGN- MENTS, To PEEELEss SPRINGS, INC., 0E WEST CHESTER, PENNSYLVANIA, A CoE- PORATION OF PENNSYLVANIA MACHINEfEoE EORMING AND ATTAGHING WIRE corLs original No. 1,649,600, date- November A, 1927, serial` No. 131,206, inea August 24, ieee. Application for reissue led June 11, 1929.

This invention, stated in itsl broadest terms, relates to wire winding machinery ofthe a'utomatic type and has` more especial relation to machinery of this type in whichsmall coils of wire are formed and simultaneously secured between adjacent coiled springs for holding the latter together.

The invention consists of the novel construction hereinafter described and' iinally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the followingdes'cription taken in connection with the accompanying drawings forming part hereof, andin which:

Fig. 1, is a View in' front elevation of Inachine parts embodying the invention.

Fig. 2, is a front view, upon an enlarged y scale and partly sectioned, of Certain of the parts shown in Fig. 1. n

Fig. 3, isa view in side elevation of Fig. '1i'. Fig. 4, is a plan view thereof.

Fig. 5, is a face View of theI double-cam shown at the left hand side of Fig. 1.

Fig. 6, is a view showing in end elevation the dovetail iit of the sliding jaw. 1

Fig. 7, is a front dia'gramriiaticview illustrating the. manner of coiling wire around a pair of coiled springs. y p l y,

Fig. 8, shows the same parts in-` end elevation.

Fig. 9, is a viewl in perspective of a finished, detached coil; and p Fig. 10, is a viewin pl'an'- of several coiled springssecured together by said wires.

In the' drawings, 1 designates a `frame' which may be supported in any way, as for in stance suspended by rods 2 from the'ceiling 1 Rotatably supported in fra-me 1 is the main driving shaft- 3 and paralleling the Same is the secondary shaft 4. The shafts' arev ro-v tatable in unison meshing gear wheels-,5 and 6 being provided Jfor the purpose. Shafty 3 may be driven by any suitable source ofv power formingnovpart of the present vinvention and vfor thisfreason has notl been illustrated, yEach of the shafts 3 andlis,equipped with a' feed roller,"thevsa'l'nebeingl designated 7 and 8 respect-ivelvy.N u These rollers are groovedA annularly at 10'alndI 11 for wie' ac- Serial No. 370,018.

leftin Fig. 2 the two gauges abut and the grooves form complete spirals, .-Thuis, as the guide rollers 7-8 feed wire 12 '1to the meeting gauge parts the wire isOrCed around ins-ide the sameto form a coil 19,1315. seenfin Fig. 9. As the wire12 is fed through vthe rollers Q8 itmay, if found' desirable, strain out the wire prior lto being' ed'throngh the said rollers by means of straining rollers 20, see Figs. 1 and 3., lThesestraining,rollers`120 form no part of the present invention and may be positioneclinl any desired plaee,y for instance: upon the frame r1 as .shownvin the dra-wings. The shiftable jaw' 1,7 is moved to the left in Fig. 2 by means of ai lever 21 vhaying slot and pin connection as at '2 2 withtheshiftable jaw 17, said lever 21'being mounted upon a rock shaft 23 carried by frame This rock-shaft also carries an arrfn124 provided with anrextension 25. The, extension-- 25 is connected with, the frame V11 by means of a coiled spring 26, WhiCh'spr'ing tends'tokeep the shiftable jaw 17 movedftothe right in Fig 1. The extension 25'is' operated upon by means of a: shiftable pin 27 seeFig-Qvlg, which pin carries at itslower end a roller 2.8 adapted to track upon a' earn 29. zThis cam 2,9v is carried by driving shaft and the rotation ,of the cam.2 9 in the directionof the arrow in Figil, the pin 2,7Iis pressed' outward thus movingrextension 25ct armr`24-upwardly against Athefact'ion' of spring 26, thus ,shifting lever 21 andthe movable .the left in Fig. l' so that lthe, gauge 1G/oie aw17 abuts against gauge v1,5 or' lixed jaw 14, A Obviously as the cam operating surface' of camw29is moved away ,roml the roller 2,8` of p inl,27, the springe 26 causes the extension2,5, 24; lev 21., and, jaw', 17 fo moreno'. iirjmal position., Tlienexten'sion ShQWIlth lfi ha'nd side of Fig.' 1 isfpro'vidred with ay bear-` ing plate 45L against Which the cam actuated pin 27 abuts. Set screws 46 and an adjusting screw 47 are provided this bearing platel in order that the plate may be properly pos1- tioned and-locked to place. f

Referring now particularly to Fig. 2, a description Will be given of the knife an'd'its `mechanismtvvhich roperate tol out, a finished `coil of Wire;` n The feed roller 7 is provided. i

With a pin 30 having` a rounded end which pin 30 in the'rotation of the feed roller 7 1s adapted to contact' With the inclined"surfacey of the head 31 of a vertically arranged pin This p'in 32'upon being depressedexerts pressure upon the inclined surface of'fa horizontally disposed member, 34 which carries a longitudinally extended cutter 35, the

a outer end or cutting edge of which cutter 35 normallyis substantially flush with the innermost portion of the gauge 15;, as clearly illustratedat 'the left handside OfFig. 2. The cutter 35 is mounted inthis normal position by means ofthe spring. Thus, as

i the feedrollers 7 and S'feed vvire 1Q of the @gauges 15 and 16 the Wire is coiled in said f gauges in the fashion shown in Fig. 7 around i the vcoils 195previously described,` are thus formed, the feed roller 7 has proportionately A advanced so 'that the stud v3() depresses head a pair of adjacent coiled "springs 3l38-` As l, 31 and the pin 32 andv `shiftsmember' 34 to theright to cause `the cutter 35 vto sever the coil 19, asfformedfrom the remainder `of thewire This operation is` repeatedfand yrepeat-ed t until "the required number of rings j, and'SS are seculrvedfto'getherby ire'jcoils 179, illustrationfbf which: is

" jaw 1 4 is, provided' with apprises sions". ease@ Fig.` 8`,`fand, the j aivi 17 is provided Withsimi- @lar r,slots I40., `vv'liich slot-stare :used asfguides "for presenting [springs 3,7538 tothe gauges 15,-16.. Theslidable jaw 17,1"asshovvntin i Figsge ande, is pmvideawah a amassed connectionivith respect to thejffra'me 1.`

4The 'bearing t 42y ,Which Esupports shaftf 4 i is y mountedfin Ways 43m` frame 1 andthe bearl ing/42 .has cushioned,relation` as at 44 vvith ",thefframe-f1n`see Figl. This isso that the "left inFig'.v 1 to talie'careof any inequalities inl thev'viie 12 `and thereby prevent amming "offfeed roller ,partslf givesattisffactory` and" reliable results, itis yto understood that "the, same is Asus,`c"eptiblepof 'n ,wiirppw be apparent that" i; 11a-vede'- thereoffwhich hasbeen found in lpracticeio modification` in variousfyparticul'ars, Without darete fantasien? Saperi e@ in ovvn in Figf 10. "It maybefsta'ted that lthe i vention or sacrificing any of its advantages.

/Vhat I claim is:

'1. In a machine of the character stated, Wire feeding rolls, a fixed part-ring forming gauge, 'a companion part-ring forming gauge movable longitudinally toward the fixed gauge movable longitudinally toward the fixed gauge to abutting relation, means for feeding Wire through said rolls togsaidmeeting gauges fory a pre-determinedlength of -Wire, a cutter, and means carried' by one of said feed rolls'for operating said cutter to sever said Wire after the proper length therefof "has been fed to said meeting gauges to form a' spiral coil. f

2. In a machine `of they character stated, Wire feeding rolls, a fixed part-ring forming gauge having a spiral groove therein, acom- 'panion partring forming gauge having a spiral groove therein movable longitudinally toward the fixed gauge to abutting relation,

- means for feedingvvvire through said rolls to said meeting gauges for a pre-determined length of Wire, a cutter, and means carried by` one of said feed rolls for operating said cut ter to sever said. Wire after the proper length y thereof has beenfed toy said meeting ygauges Mtoffo'rma spiral coil.,k Y i `3.k Ink afmachinefof the character stated,`

Wire feeding rolls, a fixed part-ring forming gauge, a companion part-ring forming gauge 'movable longitudinally toward the xed n gauge n, tol abutting relation said gauges each a' having; la'",longitudinally extendedA U-'shaped `slot vthereinto accommodate a coiled` spring,

means for. feeding Wirethrough` said rolls to said meeting gauges: for apre-determined length of Wirea cutter,` and means carried by one of said f eedrollsfor operating said cutter to jsevenfsaid fvvire after-3 the [proper length thereof has been fedv to said meeting gauges to"forma spiral'coil.` 1,'

` ,4. vIn adeviceolf the character stated, Wire feeding rolls", a` fixed,lpart-ring`vr A.forming gauge, a companion part-ring forminggauge movable longitudinally toward ythe xed .gauge to abutting relation, means for fee-ding Wire through said rolls to said meeting .gauges for a pre-determined length of Wire,

a cutter andikmeansincluding` a lixedpin `oarried by onefofqsaid feed rolls for operating Msaid'cutter tosever saidfvvire after the proper :r length thereof has. beenfed to said meeting jvised a `novelfand useful "construction vvhicht,gaugms` to form a Splral C011' i lembodies "the` featuresoff,advantage Menum'erated vas desirable :in the statement of the invention and j the description andL `vvhile Ihave in theln'esent'"instancev shown. `and fde'scribed "the preferred embodiment 5:1In` amachine of `the character stated,

f *Wire'ffeeding rolls, aiixed vpart-ringforming -gauge,a companion part-ring forming gauge movable longitudinally tovvard the fixed 'gauge to abutting relation, ymeans vfor feed,- `ing Wire 'through saidwrolls. to said meeting gaugesifor Ya pre-determined length of Wire,

to sever` saidfvvireaft'er the'proper.

length thereof has been fed to said meeting gauges to form a spiral coil.

6. In a machine of the character stated, wire feeding rolls, a fixed part-ring forming 5 gauge, a companion part-ring forming gauge movable longitudinally toward the fixed gauge to abutting relation, means for feeding wire through said rolls to said meeting gauges for a pre-determined length of wire, lo a cutter, and means carried by one of said feed rolls including cam mechanism, for operating said cutter to sever said wire after the proper length thereof hasv been fed to said meeting gau es to form a. spiral coil.

7. In com ination, a hollow cylindrical wire gauge formed intwo parts, means for securing separating relative movement between the two parts of the gauge to admit elements to be joined to the space defined by the gauge, and for securing closing relative movement of the two parts to cause the gauge to embrace such elements, and means for feeding wire to the inner periphery of the gauge whereby a spiral coil is formed about such g5 elements.

8; In combination, a coil forming gauge including two relatively movable parts, means for securing relative movement of the parts to admit vadj acent elements of a pair of a0 coil springs, means for supporting the adj acent elements within the gauge in spaced relation to the inner periphery thereof, and means for forcing wire into the gauge in the space between the adjacent elements of the coil springs and the vinner periphery, whereby a spiral coil is formed loosely embracing the said elements.

9. In combination, a hollow cylindrical wire forming gauge, a wall at each end of the gauge each having slots terminating clear of the periphery of the gauge and extending dia-metrically across the ends of the gauge, means enabling the introduction of elements of adjacent coil springs into said slots whereby said elements are supported in spaced relation to the inner surface of the gauge, and means for axially extending wire for a predetermined length tangentially into the gauge so that a closed coil is formed embrac ing the said elements, and the first mentioned means arranged to permit the withdrawal of the connected coil spring elements from the slots of the end walls.

WALTER KIWI. 

